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  5. Light - Reflection and Refraction

10th Class Science Light - Reflection and Refraction Question Bank Light - Reflection and Refraction

  • question_answer
    A camera uses a converging lens to produce an image on the film. If the focal length of the lens is 10 cm, where can an object be placed from the camera for taking a photograph?

    A) 10 cm                                  

    B) 15 cm  

    C) 25 cm                                  

    D) None of the above

    Correct Answer: C

    Solution :

    The image obtained from a camera is real, inverted and diminished. To get such an image, it must be a case of u > 2f.This implies that u > 20 cm. The object can placed at 25 cm from the camera for taking a photograph.


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